SunPower acquired Blue Raven, which it called 'one of the fastest growing residential solar providers in the U.S.'

Merck, Southwest Airlines, Pinterest, SunPower and Luby's are five top stock gainers for Friday.

SunPower was initiated with an outperform rating by Evercore ISI.

The Department of Energy lays out a plan to increase the country's power grid share of solar energy to 40% by 2035 and 45% by 2050.

Sunrun beats Wall Street's first-quarter revenue forecasts and increases its full-year guidance.

"Supply chain challenges and persistent delays significantly limited the brand's responsive abilities" to changing consumer trends, CEO Sonia Syngal told investors Thursday.

"We believe the slowdown was caused by the spending pressure our consumers felt from higher gas prices and broader inflation," said CEO Bruce Thorn.

Costco took in $984 million in new membership fee in its fiscal third quarter, helping the bulk retailer top Street forecasts for topline revenues.